my air con does not work at all!!!!
i pressed the refill valve to see if there wa any gas i there and it appears not. not so much as a hiss of air escaped the valve when i pressed it open. so im thinking a leak some where that has allowed all the gas to escape. i have only owned the car for 4 months and it has not worked since iv had it.
any common causes?
anyone else had same thing?

Thanks
Mat